Descriptive statistics refer to

• nominal, ordinal, interval, ratio

• summarize a group of numbers

• draw conclusion and make inferences of numbers

• characteristic that can have different values

------------- is when relatively few of the scores fall at the low end of the distribution

• negative skew

• positive skew

• bimodal distribution

• normal curve

....... is when relatively few of the

scores fall at the high end of the distribution.

• positive skew

• standard deviation

• median

• negative skew

numeric variable in which the values are ranks is called ____________ scale

• nominal

• interval

• order

• ratio

Data can be described by using

• measure of central tendency

• graphic presentation

• measure of variability

• frequency

When making a histogram, what goes along the bottom line?

• frequency

• midpoint

• value

• median

figure the mean of following scores;

2, 8, 3, 6, 6

• 6

• 4

• 3

• 5

What is the mode for the following score;

5, 3, 2, 13, 2

• 3

• 5

• 2

• 13

What is the mean for the following score;

5, 3, 2, 13, 2

• 3

• 5

• 2

• 13

In a normal curve, approximately 68% of the cases fall between

• -3 and +3 SD

• -1 and +1 SD

• 0

• -2 and +2 SD